36 Myriapoda of West Africa. 



6. Odontopyge furcata (Karsch). 

 Plate III, figs. 24-28. 



Spiro.itreptus (^Odontopyge) furcatus, Karsch : Neue Juliden des Berliner Museums, 



22. 



Body cylindrical, narrowed posteriorly and very slightly anteriorly, not 

 constricted. 



Covered portion of epicranium with two well-pronounced transverse stria- 

 tions, the space between which is finely striated longitudinally. 



Vertex smooth or very finely striate longitudinally ; sulcus obsolete, but the 

 suture distinct, as well as the transverse intra-ocular suture which it joins. 



Clypeus smooth, with a large shallow depression slightly below the middle; 

 upper row of six or eight punctations ; lower row of five to seven on each side 

 of, and six behind the emargination ; each of the punctations has a bristle, 

 some of which are .125 mm. long. 



Labrum with a shallow emargination and three rather blunt teeth which 

 project far enough to have their ends nearly in line with the edge of the 

 labrum, in which is a notch on each side near the emargination. 



Eyes pointed-oval, distant from each other by about the transverse diameter 

 of one of them ; not close to the antennae ; ocelli subequal, arranged 11 -|- 10 

 + 9 4- 8-f 7 + 5-4-3 = 53. 



i\ntennae 4 mm. long, second joint longest, the others gradually shorter; 

 fifth and sixth taken together longer than the second. 



Mandibulary stipe with the exposed face convex, with a plane or slightly 

 raised margin, in outline subrectangular the anterior edge faintly emarginate. 



Masticatory plate rounded-triangular, about twice as long as broad, divided 

 into a flat triangular, roughened surface with a raised margin, and a broad 

 groove much below the plane of tlie roughened surface. 



Mandibulary tooth triangular, with rounded apex, about twice as long as 

 breadth of base. 



> 



Dentate lamella with five teeth, four of them rather long, with rounded 

 apices, the fifth very broad. 



Pectinate lamellse nine. 



Hypostoma moderately arcuate, the ends enlarged and with a chitinized 

 projection on their posterior edge. 



Mentum about six times as broad as its uaedian length, the ends very nar- 

 row. Between the narrow ends of the mentum and the hypostoma is on each 

 side a membranous pouch into which fits the large process of the coxa of the 

 first pair of legs. 



Promentum without bristles, shaped like half of an ellipse divided by its 

 short axis ; a narrow posterior portion plane, the larger anterior part concave, 

 with a distinct line of demarcation. 



Stipe with bristles along the promentum and the anterior half of the exte- 

 rior margins. 



Lingual laminae with a few short bristles at base and three long ones toward 

 the anterior margin. 



